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Spam(bruteforce) bots problem on server
Hello guys, i' m new on this forum, sorry if this topic is not for this category, please move to right category.
My problem started 2-3 month ago. I have server(Centos 6.7) with installed on php+appache+bind+mysql + directadmin control panel. Usually directadmin send me alerts for bruteforce, but know i can't understand is it bots or is ddos. i blocked all asiasn traffic, and now he send me european and usa traffic. fail2ban, csf, afp and other like firewall scripts can't help me. how can i fight with them? 
sorry for my bad english
Comments
Are they coming from hosting IPs or compromised IPs? If so, you can use http://getipintel.net to detect and block them.
http flood?
thanks for comments.
black
this traffic came not only from ISP -s. this website i can't use for iptables
** century1stop **
maybe, I dont know, how to find out?